Queen's County was a UK Parliament constituency in Ireland, returning two Members of Parliament from 1801 to 1885 and one from 1918 to 1922.
This constituency comprised the whole of Queen's County, now known as County Laois, except for the parliamentary borough of Portarlington 1801–1885.
Note:- Parnell was appointed as Secretary of State for War, requiring a by-election.
FitzPatrick was made Lord Castletown, causing a by-election.